<template>
  <div class="login-container">
    <div class="logo" />
    <div class="form">
      <h1>登录</h1>
      <el-card shadow="never" class="login-card">
        <!--登录表单-->
        <!-- el-form > el-form-item > el-input -->
        <el-form ref="form" :model="loginForm" :rules="loginRules">
          <el-form-item prop="mobile">
            <el-input v-model="loginForm.mobile" placeholder="请输入手机号" />
          </el-form-item>
          <el-form-item prop="password">
            <el-input v-model="loginForm.password" show-password placeholder="请输入密码" />
          </el-form-item>
          <el-form-item prop="isAgree">
            <el-checkbox v-model="loginForm.isAgree">用户平台使用协议</el-checkbox>
          </el-form-item>
          <el-form-item v-loading="loading">
            <el-button style="width:350px" type="primary" @click="login">登录</el-button>
          </el-form-item>
        </el-form>
      </el-card>
    </div>
  </div>
</template>

<script>

export default {
  name: 'Login',
  data() {
    function validatorAgree(rule, value, callback) {
      if (value === false) {
        // 请勾选相关协议
        callback(new Error('请勾选相关协议'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        mobile: '13800000002',
        password: '123456',
        isAgree: false
      },
      loginRules: {
        mobile: [{ required: true, message: '请输入手机号', trigger: 'blur' },
          { pattern: /^1(3|3|5|6|7|8|9)\d{9}$/, message: '手机号码格式不正确', trigger: 'blur' }],
        password: [{ required: true, message: '请输入密码', trigger: 'blur' },
          { pattern: /^\S{6,18}$/, message: '密码格式不正确(不能有空格)', trigger: 'blur' }],
        isAgree: [
          // { required: true, message: '请勾选相关协议', trigger: 'blur' }
          // 使用自定义校验规则
          { validator: validatorAgree, trigger: 'change' }]
      },
      loading: false,
      redirect: undefined
    }
  },
  watch: {
    // 监听路由的变化
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
        // 等价于：
        // if (route.query) {
        //   this.redirect = route.query.redirect
        // }
      },
      immediate: true
    }
  },
  created() {
    console.log(this.$route.query)
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    login() {
      this.$refs.form.validate(async(valid) => {
        if (!valid) return
        // 如果校验成功就去登陆了
        // 2个作用：1，加载中的样式  2，防止用户重复提交
        this.loading = true
        await this.$store.dispatch('user/login', this.loginForm)
        // 如果登录成功，就跳转到内容页面，如果登录不成功，上面的代码会返回一个失败的promise对象，所以下面的代码不会执行
        this.$router.push({ path: this.redirect || '/' })
      })
    }
    // handleLogin() {
    //   this.$refs.loginForm.validate(valid => {
    //     if (valid) {
    //       this.loading = true
    //       this.$store.dispatch('user/login', this.loginForm).then(() => {
    //         this.$router.push({ path: this.redirect || '/' })
    //         // 上面代码等价于：
    //         // if (this.redirect) {
    //         //   this.$router.push({ path: this.redirect })
    //         // } else {
    //         //   this.$router.push({ path: '/' })
    //         // }
    //         this.loading = false
    //       }).catch(() => {
    //         this.loading = false
    //       })
    //     } else {
    //       console.log('error submit!!')
    //       return false
    //     }
    //   })
    // }
  }
}
</script>
<style lang="scss">
.login-container {
  display: flex;
  align-items: stretch;
  height: 100vh;
  .logo {
    flex: 3;
    background: rgba(38, 72, 176) url(../../assets/common/login_back.png)
      no-repeat center / cover;
    border-top-right-radius: 60px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: center;
    padding: 0 100px;
    .icon {
      background: url(../../assets/common/logo.png) no-repeat 70px center /
        contain;
      width: 300px;
      height: 50px;
      margin-bottom: 50px;
    }
    p {
      color: #fff;
      font-size: 18px;
      margin-top: 20px;
      width: 300px;
      text-align: center;
    }
  }
  .form {
    flex: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-left: 176px;
    .el-card {
      border: none;
      padding: 0;
    }
    h1 {
      padding-left: 20px;
      font-size: 24px;
    }
    .el-input {
      width: 350px;
      height: 44px;
      .el-input__inner {
        background: #f4f5fb;
      }
    }
    .el-checkbox {
      color: #606266;
    }
  }
}
</style>
